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b) 1 1/2-3 1/3+6 1/5=1 3/6-3 2/6+6 1/5=-2 1/6+6 1/5=-2 5/30+6 6/30=4 11/30
c) 4 1/4*2 1/2=8 1/8
d) 6 2/3:(-3 1/3)=20/3*(-3/10)=-2
e) 5 1/2-3*(-2 1/2) : 3 1/8=5 1/2+ 6 1/2 : 3 1/8=5 1/2+6 4/8 : 3 1/8=5 1/2+52/8*8/25=5 1/2+52/25=5 1/2+2 2/25=5 25/50+2 4/50=7 29/50
2)
a)3748
b) -1186
c)-15091
d)73
e)0,9